Maintenance & Technical > KX500 Original
a working compresion release is here
jfabmotorsports.com:
--- Quote from: jfabmotorsports.com on December 27, 2009, 07:57:16 AM ---
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You do have to reset the valve if the engine fires and doesn't start. That is a small inconveniance. The remotely opperated valve solves that problem.
I am currently working on a completely automatic decompression valve. All you would have to do is kick the bike like a KX450f.
JFAB
[/quote]
I will post a little more on this later. Does anyone have any thought along these lines...good idea, bad idea, concerns?
JFAB
gianni2takt:
if you have the blue deco valve from jonsered , you dont have to reset the valve after not starting because the holes on the side are bigger . but the still valves have smaler holes but you can make them bigger and dril more holes in it like i did by my 570cc , and i do not most reset the valve after not starting and reset itselvs after starting
demographic:
--- Quote from: gianni2takt on December 27, 2009, 09:56:46 AM ---if you have the blue deco valve from jonsered , you dont have to reset the valve after not starting because the holes on the side are bigger . but the still valves have smaler holes but you can make them bigger and dril more holes in it like i did by my 570cc , and i do not most reset the valve after not starting and reset itselvs after starting
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Does the Jonsered (and I assume that Husqvarna will be the same cos J Reds have been bought out by Husky and often pretty much the same saw with a different colour) valve have the same thread diameter and pitch as the Stihl one?
jfabmotorsports.com:
--- Quote from: demographic on December 27, 2009, 10:16:11 PM ---Does the Jonsered (and I assume that Husqvarna will be the same cos J Reds have been bought out by Husky and often pretty much the same saw with a different colour) valve have the same thread diameter and pitch as the Stihl one?
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They do have the same threads. They are almost identical. The Stihl does have smaller holes than the others. I have used both and did not notice a big difference in kicking effort. I went back to the Stihl valve with the black knob on my bike. I didn't like the blue knob.
demographic:
--- Quote from: jfabmotorsports.com on December 28, 2009, 01:34:06 AM ---
--- Quote from: demographic on December 27, 2009, 10:16:11 PM ---Does the Jonsered (and I assume that Husqvarna will be the same cos J Reds have been bought out by Husky and often pretty much the same saw with a different colour) valve have the same thread diameter and pitch as the Stihl one?
--- End quote ---
They do have she same threads. They are almost identical. The Stihl does have smaller holes than the others. I have used both and did not notice a big difference in kicking effort. I went back to the Stihl valve with the black knob on my bike. I didn't like the blue knob.
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Fair comment as the black one does look more like it was put there by Kawasaki, there's a local tool dealer that sells J reds, Huskies and Stihls so I should have a fair choice if I go for it.
I'm not dead keen on the idea of drilling a hole in my cylinder head though.
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